Решите систему неравенств (x^2+1)(x^2+3)(x^2-2) больше или равно 0. Created by Iwillims. algebra-ru

Решите систему неравенств (x^2+1)(x^2+3)(x^2-2) больше или равно 0...

July 2022 1 14 Report

Решите систему неравенств (x^2+1)(x^2+3)(x^2-2) больше или равно 0

Answers & Comments

DilshodSoliev (x^2+1)(x^2+3)(x^2-2)>=0
(x^4+3x^2+x^2+3)*(x^2-2)>=0
x^6-2x^4+3x^4-3x^2+x^4-2x^2+3x^2-6>=0
x^6+2x^4-2x^2-6>=0
t=x^2
t^3+2t^2-2t-6>=0
t(t^2+2t-2)-6>=0
t1>=6

t^2+2t-2=0
D=4+4=8=3^3
t2=(-2-3)/2=-2.5 || t3=(-2+3)/2=0.5

x1=6^2=36
x2=(-2.5)^2=6.25
x3=(0.5)^2=0.25

0 votes Thanks 0

Answers & Comments

tex]...

reshite neravenstvo metodom intervalov x 2x3x 12 bolshe ili ravno 0

reshite sistemu neravenstv x4x lt1 x24xgt 1

dokazhite chto pri lyubyh znacheniyah a verno neravenstvo a32 altaa5112

tex]...

uprostite vyrazhenie cos2a cos2b cos ab cos a b

mozhet li ugol pravilnogo n ugolnika byt ravnym 150 gradusam esli da to skol

radius okruzhnosti opisannoj okolo pravilnogo n ugolnika raven r 8sm najdite

dany storony bc i ac treugolnika abc i ugol a protivolezhashij storone bc najdi

v arifmeticheskoj progressii pervyj chlen raven 105 raznost 7 a summa pervyh

рекомендуемые вопросы

Helpful Links

Helpful Social